This map shows the areas where Roundheads are present.
The Roundhead is an enemyhead in Stick Ranger. Roundheads are divided into two types: neutral and inverted. The former first appears in Seaside 1 while the latter was introduced in Snowfield 9. It is unusually small, and has become very common in the post-Castle stages. There are 46 enemies with the Roundhead head in Stick Ranger (35 normal and 11 inverted), making it the most commonly used head in the game. The combined population of enemies with this head in Stick Ranger thus far is 1791, more than any other head type so far.
The Inverted Roundhead bears a remarkable similarity with yet another creation of the Fan-Ball wiki, which was referred to as the Circle head. Though, the Circle head was an entirely new sprite, while the Inverted Roundhead is, as the name suggests, simply an inverted colored Roundhead (with an outline).